NG-93-3219, Monthly Operating Rept for Jul 1993 for DAEC
| ML20056E571 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 07/31/1993 |
| From: | Denise Wilson, Woodward R IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT |
| To: | Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NG-93-3219, NUDOCS 9308240281 | |
| Download: ML20056E571 (6) | |
Text
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lowa Electric Light' and Power Company j
i August 13,1993 i
NG-93-3219 j
Mr. John B. Martin Regional Administrator i
Region 111 U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn,IL 60137
Subject:
Duane Arnold Energy Center Docket No: 50-331 Operating License DPR-49
'i July 1993 Monthly Operating Report
Dear Mr. Martin:
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Please find enclosed the Duane Arnold Energy Center Monthly Operating Report for July 1993. The report has.
been prepared in accordance with the gmdelines of NUREG-0020 and distribution has been made in accordance with DAEC Technical Specifications, Section 6.11.1.c.
Very truly yours, f AAAA-A Plant Superintendent, Nuclear David Wilson DLW/RBW/cc Enclosures File A-118d l
cc:
Dir. of Nuclear Reactor Regulation Mr. Dennis Murdock U S. Nuclear Regulatory Commission Central lowa Power Cooperative Mail Station P1-137 Box 2517 Washington, D C. 20555 (Orig.)
Cedar Rapids,IA 52406 Mr. Robert Pulsifer Mr. William Loveless Project Manager U.S. NRC 1 Whitellint North 1 Whiteflint North Mail Stop 13E21 Mail Stop IICl4 11555 Rockville 1%e 11555 Rockville Pike Rockville, MD 20852 Rockville, MD 20852 (2)
Document Control Desk Dr. William A. Jacobs, Jr.
INPO Records Center GDS Associates,Inc.
I100 Circle 75 Parkway Suite 1500 Suite 720 1850 Parkway Place Atlanta, GA 30339-3064 Marietta, G A 30068-8237 Mr. Steve Brown Mr. Dale Arends Iowa State Utilities Board '
Corn Belt Power Cooperative 1.ucas State Of6ce Building 130013th Street North Des Moines, IA 50319 Ilumboldt,IA 50548 Mr. Fred Yost DCRC Director, Research Services Utility Data Institute NRC Resident Inspector 1700 K St. NW, Suite 400
. Washington; DC 20006 y )
9308240281 930731 y%
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PDR ADOCK 05000331 W(1 R
PDR L.
,, Uuane Arnold Energy Center
- 3277 UAEC 11and
- Palo, Iowa 52324
- 319M17611 A
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OPERATING DATA REPORT DOCKET NO:
50-0331 4
DATE:
08/13/93 Unit:
Duane Arnold Enerev Center COMPLETED BY:
Bichard Woodward i
TELEPIlONE:
G19) 851-7318 OPERATING STATUS 1.
Unit Name: Duane Arnokt Enerev Center 2.
Reporting Period: July 1993 3.
Licensed Thennal Power (MWt): 1658 Notes 4.
Nameplate Rating (Gross MWe DER): 565.7 (Turbine) i 5.
Design Electrical Rating (Net MWe DER): 13_8 6.
Maximum Dependable Capacity (Gross MWe MDC): 141 7.
Maximum Dependable Capacity (Net MWe MDC):
iL5 3.
If Changes Occur in Capacity Ratings (Items Number 3 through 7) since the i
last report, Give Reasons: N/A 9.
Power Level to Which Restricted,If Any (Net MWe): 392 MWe averaec for Jujy during 675.8 on-line hours, off-line'68.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />) 10.
Reasons for Restrictions,if Any: Thermaj oower during July coasted-down approximatelv %%yer day.
The coast-down becan April 5.
This Month Year-to-Date Cumulative 11.
Hours in Reporting Period 744o 5.087.0 162.143.0 12.
Number of Hours Reactor Was Critical 685.1 4,903.2 120.884.4 13.
Reactor Resene Shutdown Hours 0.0 0.0 192.8 14.
Hours Generator On-Line 675.8 4,878.9 117,901.4 15.
Unit Reserve Shutdown Hours 0.0 0.o o
16.
Gross Thennal Energy Generated (MWH) 840.417.1 7.382,404.1 161,465,697.8 17.
Gross Electrical Energy Generated (MWH) 269.668.0 2.445.857.0 54.070,766.5 18.
Net Electrical Energy Generated (MWH) 248.498.7 2.293,878.3 50,690,532.1 19.
Unit Service Factor 90 8"e 95 9 %
72.7 %
20.
Unit Availability Factor 90.8 %
95.9 %
72.7 %
21.
Unit Capacity Factor (Using MDC Net) 64.9 %
87 6 %
62.1 %
22.
Unit Capacity Factor (Using DER Net) 621 %
83.8 %
59.4 %
i 23.
Unit Forced Outage Rate 0.0%
0.0%
12.0 %
i 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of each): Refueling, July 29,1993, 59 days.
25.
If Shutdown at End of Report Period, Est. Date of Startup: September 26,1993 i
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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO: 50-0331 DATE: 08/13/93 Unit: Duane Arnold Energy Center COMPLETED BY: Richard Woodward TELEPHONE: [319) 851-7318 i
MONTil July 1993 j
i Average Daily Average Daily Power Level Power Level l
Day (MWe-Net)
Day (MWe-Net) l l
1 395 0 16 373 4 2
390.3 17 368.5 3
389.3 18 368.5
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J_9_L5 19 366 5 i
5 391,4 20 369.2 6
190.2 21 367.8 i
7 389 6 22 366,4 8
383.8 23 361.5 9
375 0 24 359 2 10 JJ21 25 352 2 11 380 3 26 356.5 12 182.7 27 3512 13 378.4 28 246 0 14 376.3 29
-71 15 3751 30 d_L3 31 s
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h DOCKET NO: 50-0331
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DATE: 08/13/93 Unit: Duane Arnold Encrev Center i
COMPLETED BY: Richard Wmxiward TEL.EPIIONE: (319) 851-7318 i
UNIT SillTfDOWNS AND POWER REDUCTIONS REPORT MONTil: July 1993 No.
Date Type Duration Reason Method of Licensee System Comp.
Cause (1)
(llours)
(2)
Shutting Event Report Code Code Down (4)
(5)
Reactor (3) l 1
7/29/93 S
68.2 C
1 N/A N/A N/A DAEC took the generator off-line 7/29/93 03:46 hours and manually scrammed 7/29/93 13:05 hours to refuel.
1 - F: Forced 2 - Reason:
3 - Method:
4 - Exhibit G-S: Scheduled A-Equipment Failure (Explain) 1-Manual Instructions for Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee Event Report C-Refueling 3-Automatic Scram (LER) File (NUREG-0161)
D-Regulatory Restriction 4-Continued E-Operator Training & License 5-Reduced Load 5 - Exhibit 1 Examination 9-Other (Explain)
(Same Source)
F-Administrative G-Operational Error (Explain)
II-Other (Explain t
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i REFUELING INFORMATION DOCKET NO: 50-0331 DATE: 08/13/93 Unit: Duane Arnold Energy Ccater COMPLETED BY: Richard Woodward TELEPHONE: 019) 851-731R
- 1. Name of facility.
Duane Arnold Energy Center
- 2. Scheduled date for next refueling shutdown.
In-progress, refueling shutdown began July 29,1993.
3.
Scheduled date for restant following refueling.
September 26.1993 4.
Will refueling or sesumption of opemtion thereafter require a technical specification change or other license amendment' l
No
- 5. Scheduled date(s) for submitting proposed licensing action and supporting infoimation.
1 Not applicable
- 6. Important licensing considemtions associated with refueling, e.g., new or different fuel design or supplier, umeviewed design or performance analysis methods, significant changes in fuel design, new opemting procedures.
No
- 7. 'Ihe number of fuel asremblies (a) in the core, (b) in the spent fuel stomge pool, (c) new fuel on the re-fuel floor, a.
368 b.
1152 i
c.
128 S. 'Ihe present licensed spent fuel pool stomge capacity and the size of any increase in licensed storage capacity that has been requested oris planned,in number of fuel assemblies.
a.
2050 - Licensed Capacity or b.
1898 under the presently installed storage rack capacity.
c.
3152 requested by RTS#252, submitted March 26,1993
- 9. 'Ihe projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.
a.
2000 - Licensed Capacity or b.
1998 under the presently installed storage rack capacity.
. 1-DOCKET No.: 50-0331 DATE: 08/13/91 9
Unit:_ Duane Arnold Energy Center COMPLETED BY: Richard Woodward
{
TELEPilONE: Gl9) 851-731R Monthly Operational Overview for July 1993:
1 At the beginning of July, DAEC had coasted-down to 79% of licensed thermal power.
Thermal power has uniformly decreased approximately % % per day since April 5, the end of
-l full power capability for Cycle 12.
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On July 2 electric output was briefly reduced 30 MWHe to close the ' 'D' inboard Main
.j Steam Isolation Valve (MSIV) after a ground fault in the 125 Volt DC System was traced to the penetration containing the 'D' inboard MSIV limit switch cables. - On July 8 electric output was reduced 10 MWHe to reopen the MSIV after installing meters to monitor the circuit path to the position switches. On July 9 a Recirc Pump runback caused a brief 150 r
MWHe reduction in electric output.
13efore shutting down July 29, power level had declined to 73%. The generator was disconnected from the grid at 03:46 hours, officially beginning Refuel Outage 12. The plant had begun Cycle 12 April 26,1992 at 16:40 hours. Thermal capacity factor for the cycle was 90.7%.
l The following table summarizes July plant operation and categorizes production losses in
[
terms of average MWe, capacity factor, and full power equivalent hours.
.I Average Capacity Equivalent Fult MWe Factor Power Hours Seasonal Losses 6.9 1.2%
9.0
{
oft-line (7/29/93 03:46 - 7/31/93) 51.9 9.2%
68.2 Coast-down 130.5 23.1 %
171.6 l
Losses due to degraded heat rate 5.5 1.0%
7.2 Shut-down 5.0 0.9%
6.7 Other Losses 3.5 0.5%
4.7 i
Ac.tjuaLQross Electric outpul 362.4 64.1 %
476.6 i
Design Gross Electric Output 565.7 100.0 %
744.0 Licensm_g Action Summary:
3 Plant Availability:
90.8%
Unplanned Auto Scrams (w/ Critical) this month:
0 l
Number of reportable esents:
0 Unplanned Auto Scrams (w/ Critical) last 12 months: 2
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